Future Technology Devices International · 2020. 1. 3. · Document Reference No.: FT_001345...

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Copyright © Bridgetek Limited 1

ME812A-WH50R Module Datasheet Version 1.0

Document Reference No.: FT_001345 Clearance No.: BRT#043

Future Technology

Devices International

Datasheet

ME812A-WH50R Display

Module

General Purpose Multi Media Controller

1 Introduction

The ME812A-WH50R is a development module for FTDI’s FT812, Embedded Video Engine (EVE)

graphics controller IC. This module behaves as an SPI slave, and requires a SPI Master for proper micro-controller interface and system integration.

The ME812A-WH50R module includes a 5.0 inch 800*480 TFT LCD panel with resistive touch screen, and an audio amplifier to drive 8Ω

speaker.

1.1 Features

The ME812A-WH50R module utilises the FT812, FTDI’s 2nd generation EVE chip. Graphic, audio and

touch functions of the FT812 can be accessed with the ME812A-WH50R. For a full list of the FT812’s features, please see the FT81x datasheet. The ME812A-WH50R has the following features:

Ready to use 5 inch WVGA LCD module.

Supports portrait and landscape display mode.

Bright backlight LED with dimming.

Supports resistive touch with pressure sensing.

Supports mono audio from FT812 or external source.

On board audio amplifier for driving an external 1W speaker.

+5.0V single power supply.

Support direct connectivity to MM900EV series modules as a display add-on.

Comes with bezel with four mounting holes for easy system assembly.

http://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT81x.pdf




2 Ordering Information

Part No. Description

ME812A-WH50R FT812 module, with Quad SPI host connector, 5.0 inch 800*480 TFT LCD resistive touch panel preinstalled. Black bezel.

CleO-SPK1 An 8Ω 1W speaker enclosure with connecting wires to ME812A-WH50R.

Table 2-1 – Ordering information

Note: This module is recommended as an accessory to the MM900EV series for development purposes.

For more information on the MM900EV series, refer to:

http://www.ftdichip.com/Products/Modules/MCUModules.htm.

http://www.ftdichip.com/Products/Modules/MCUModules.htm




Table of Contents

1 Introduction .................................................................... 1

1.1 Features .................................................................................... 1

2 Ordering Information ...................................................... 2

3 Board Interface Description ............................................ 4

3.1 Board Profile ............................................................................. 4

3.2 J2- SPI slave interface .............................................................. 5

3.3 CN13- Audio connector ............................................................. 5

4 Specifications .................................................................. 0

4.1 Electrical Specification .............................................................. 0

4.2 Display Specification ................................................................. 0

4.3 Optical Specification ................................................................. 1

5 Board Schematics ............................................................ 3

6 Mechanical Dimensions ................................................... 6

6.1 Module Dimensions ................................................................... 6

6.2 Bezel Mechanical Drawing......................................................... 8

7 Application Example ........................................................ 9

7.1 Getting Start With an MM900EV Module .................................... 9

7.2 Hardware Setup ........................................................................ 9

7.3 Software Setup ....................................................................... 10

8 Contact Information ...................................................... 11

Appendix A – References ................................................... 12

Document References ..................................................................... 12

Acronyms and Abbreviations ........................................................... 12

Appendix B - List of Figures and Tables ............................. 13

List of Figures ................................................................................. 13

List of Tables ................................................................................... 13

Appendix C – Revision History ........................................... 14




3 Board Interface Description

The ME812A-WH50R module is intended for direct use into existing applications that require a display.

This module is suitable for interfacing with an external microcontroller (e.g. MM900EV series) that has a

SPI Master channel (single, dual or quad data bus).

3.1 Board Profile

Figure 3-1 – ME812A-WH50R board bottom view




3.2 J2- SPI slave interface

J2 is an 8x2 pin header which provides power inputs and SPI slave interface signals. An MCU board with SPI master can easily add a display panel by connecting to the ME812A-WH50R through J2. If an

MM900EV series module is used, it can be directly plugged into J2 and secured with 4 standoff mounting holes.

Pin No. Name Type Description

1 MA_SCK I SPI clock input

2 MA_CS# I SPI chip select, active low

3 MA_MISO I/O SPI master input, slave output or Quad SPI

IO1

4 MA_MOSI I/O SPI master output, slave input or Quad SPI

IO0

5 MA_IO3 I/O GPIO1 or Quad SPI IO3

6 MA_IO2 I/O GPIO0 or Quad SPI IO2

7 - - NC

8 - - NC

9 - - NC

10 MA_5V P 5V power supply input

11 GND P Ground

12 GND P Ground

13 MA_PD# I Powers down input, active low. Connect to

3.3V if not used.

14 MA_INT# O Interrupts output, active low. On board

4.7kΩ pull-up to 3.3V.

15 AL_PWM O PWM audio output from FT812

16 - - NC

Table 3-1 – J2 pin description

3.3 CN13- Audio connector

The ME812A-WH50R supports a mono speaker output through CN13. A PWM audio signal from the FT812 goes through a 3-stage RC filters and the audio amplifier, to drive the 8Ω speaker if connected. Maximum output power to the speaker is 1 Watt. A readymade speaker module (CleO-SPR1) is available from FTDI.

An alternative, mono line-in audio input is also provided on CN13. Users can drive in their own audio source to the on board power amplifier.

Pin No. Name Type Description

1 SP- O 8Ω speaker minus terminal

2 SP+ O 8Ω speaker plus terminal

3 AGND P Audio ground

4 AUD_IN I Audio Line IN

Table 3-2 – CN13 pin description




4 Specifications

4.1 Electrical Specification

Parameter Description Minimum Typical Maximum Units Notes

VCC VCC supply voltage 4.75 5.0 5.25 V J2 pin 9

Icc1 VCC operating current

- 350 - mA With LCD and Backlight LED on

Icc2 VCC operating current

- 750 - mA With 1W speaker

Voh Output Voltage

High

2.4 - - V

Vol Output Voltage Low

- - 0.4 V

Vih Input High Voltage 2.0 - - V

Vil Input Low Voltage - - 0.8 V

T Operating temperature

-20 - +70

Table 4-1 - Operating Voltage and Current

4.2 Display Specification

Item Spec Units Notes

LCD Type TFT active matrix -

Display Colours 16.7M -

Display active area 108.0(H) * 64.8(V) mm 5.0 inch diagonal

Number of Pixels 800(RGB)*480 dots

Pixel pitch 0.135(H) * 0.135(V) mm

Backlight 18 white LEDs -

Touch screen 4-wire resistive touch -

Table 4-2 - LCD and Touch Information




4.3 Optical Specification

Table 4-3 - 5.0” TFT Optical specification

Note: The definition of viewing angle: refer to the figures below (if looking at the reverse side of the module the FTDI logo on the PCB is facing down).




Figure 4-1 – Viewing Angle definition

Figure 4-2 – Module orientation for viewing angle




5 Board Schematics

Figure 5-1 – Board Schematic (page 1)

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6 Mechanical Dimensions

6.1 Module Dimensions

Figure 6-1 – Module Dimensions




Figure 6-2 – PCB Dimensions




6.2 Bezel Mechanical Drawing

Figure 6-3 – Bezel dimensions




7 Application Example

7.1 Getting Start With an MM900EV Module

As a quick start with the ME812A-WH50R development board, connecting to an MM900EV module development platform is recommended. Demo applications are provided for users to experiment and experience the FT812 in the MM900EV+ME812A system. The following paragraphs provide a short description for development procedures.

The MM900EV series of FT900 MCU evaluation platforms allows users to develop various applications with rich peripheral interfaces. The following MM900EV modules are compatible:

MM900EV1A: with a 32-bit high performance FT900 MCU, 10/100Mbps Ethernet, USB2.0 Host, USB2.0 Device, SD3.0, Audio Codec, SPI Master Quad Interface, and 40-pin external GPIOs.

MM900EV-Lite: Tiny board with a 32-bit high performance FT900 MCU, USB2.0 Device,

SD3.0, SPI Master Quad Interface, and 40-pin external GPIOs.

Detailed information of MM900EV module can be found at: http://www.ftdichip.com/Products/Modules/MCUModules.htm

7.2 Hardware Setup

Figure 7-1 shows the ME812A-WH50R module connected to an MM900EV1A module.

Figure 7-1 – ME812A-WH50R connects to MM900EV1A Module

http://www.ftdichip.com/Products/Modules/MCUModules.htm




The ME812A-WH50R J2 pin header connects to the MM900EV module J2 dual-enter socket (See Error!

Reference source not found. for pin mapping).

Connect a USB cable or Power Supply to the MM900EV module to power the system.

Pin number ME812A J2 Signal

MM900EV J2 Signal

1 MA_SCK SPIM_SCK

2 MA_CS# SPIM_SS0

3 MA_MISO SPIM_MISO

4 MA_MOSI SPIM_MOSI

5 MA_IO3 SPIM_IO3

6 MA_IO2 SPIM_IO2

7 - DCX

8 - CS1#

9 - VDD_3V3

10 MA_5V VDD_5V

11 GND GND

12 GND GND

13 MA_PD# PWD#

14 MA_INT# INT#

15 AL_PWM AUD_LIN

16 - DISP

Table 7-1 – ME812A-WH50R J2 and MM900EV J2 pin mapping

7.3 Software Setup

Download the FT90x toolchain and sample application for ME812A-WH50R from the FTDI website at http://www.ftdichip.com/Products/ICs/FT90x.html.

Install the FT90x toolchain on a Windows PC.

Download the sample application binary file to the MM900EV module.

The sample applications will demonstrate display, touch and audio functions of the ME812A-WH50R module. Refer to http://www.ftdichip.com/Support/SoftwareExamples/FT800_Projects.htm for more details.

http://www.ftdichip.com/Products/ICs/FT90x.html

http://www.ftdichip.com/Support/SoftwareExamples/FT800_Projects.htm




8 Contact Information

Head Office – Glasgow, UK Unit 1, 2 Seaward Place, Centurion Business Park Glasgow G41 1HH United Kingdom Tel: +44 (0) 141 429 2777 Fax: +44 (0) 141 429 2758 E-mail (Sales) [email protected] E-mail (Support) [email protected] E-mail (General Enquiries) [email protected]

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Appendix A – References

Document References

For module related documentations, please refer to URL below:

FT81x datasheet: DS_FT81x

FT81x software programming guide: FT81x_Programmer_Guide

Acronyms and Abbreviations

Terms Description

EVE Embedded Video Engine

IC Integrated Circuit

LCD Liquid Crystal Display

LED Light Emitting Diode

MCU Micro-Controller Unit

PC Personal Computer

PCB Printed Circuit Board

PWM Pulse Width Modulation

SPI Serial Peripheral Interface

TFT Thin Film Transistor

TP Touch Panel

http://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT81x.pdf

http://www.ftdichip.com/Support/Documents/ProgramGuides/FT81X_Series_Programmer_Guide.pdf




Appendix B - List of Figures and Tables

List of Figures

Figure ‎3-1 – ME812A-WH50R board bottom view .............................................................................. 4

Figure ‎4-1 – Viewing Angle definition .............................................................................................. 2

Figure ‎4-2 – Module orientation for viewing angle ............................................................................. 2

Figure 5-1 – Board Schematic (page 1) ........................................................................................... 3



Figure 6-1 – Module Dimensions ..................................................................................................... 6

Figure ‎6-2 – PCB Dimensions ......................................................................................................... 7

Figure 6-2 – Bezel dimensions ........................................................................................................ 8

Figure ‎7-1 – ME812A-WH50R connects to MM900EV1A Module ........................................................... 9

List of Tables

Table ‎2-1 – Ordering information .................................................................................................... 2

Table ‎3-1 – J2 pin description......................................................................................................... 5

Table ‎3-2 – CN13 pin description .................................................................................................... 5

Table 4-1 - Operating Voltage and Current ....................................................................................... 0

Table 4-2 - LCD and Touch Information ........................................................................................... 0

Table 4-3 - 5.0” TFT Optical specification ......................................................................................... 1

Table ‎7-1 – ME812A-WH50R J2 and MM900EV J2 pin mapping ......................................................... 10




Appendix C – Revision History

Document Title: ME812A-WH50R Module

Document Reference No.: FT_001345

Clearance No.: BRT#043

Product Page: http://www.ftdichip.com/eve.htm

Document Feedback: Send Feedback

Revision Changes Date

1.0 Initial Release 2016-10-18

http://www.ftdichip.com/eve.htm

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